Enzymes

In prokaryotes, removes and replaces RNA primers (also functions in excision repair of danaged DNA); 3'--> 5' exonuclease (for proofreading);

In prokaryotes, 3'-->5' exonuclease (for proofreading); repair?

In prokaryotes, int the main bacterial DNA polymerase for synthesis of the leading stand and of Okazaki fragments by extencion of RNA primers; 3'-->5' exonuclease (for proofreading)

in Eukaryotes, forms a complex with primase and begins DNA synthesis at 3' end of RNA primers for both leading and lagging strands;3'--> 5' exonuclease (for proofreading)

In eukarytoes, for repair

replication of mitochondrial DNA; 3'-->5' exonuclease (for proofreading)

• In eukaryotes, involved in leading and lagging strand synthesis (also functions in DNA repair);
• 3'-->5' exonuclease (for proofreading)

In eukaryotes, thought to be involved in leading and lagging strand synthesis( also funtions in DNA repair)

in both cell types, makes RNA oligonucleotides that are used as primers for DNA synthesis

unwinds double-stranded DNA via ATP hydrolysis

binds to single-stranded DNA ; stabilizes strands of unwound DNA in an extended configuration that facilitates access by other proteins

found in both cell types, makes single-stranded cuts (type I) or double-stranded cuts (type II) in DNA; relaxes DNA supercoiling; can serve as a swivel to prevent overwinding ahead of the DNA replication fork; can seperate linked DNA circles at the end of DNA replication

found in both cell types; makes covalent bonds to join together adjacent DNA strands, including okazaki fragments in lagging-strand DNA synthesis and the new and old DNA segments in excision repair of DNA

In both types of cells, binds to replication of origin and initiate unwinding of the double helix

using an intergral RNA molecule as a template, synthesizes DNA for extension of telemeres (sequences at ends of chromosomal DNA)